Motorists drive through high water at the intersection of N. New Braunfels Ave. and Retama Pl. Saturday May 23, 2015 as storms move through the area.

Motorists drive through high water at the intersection of N. New Braunfels Ave. and Retama Pl. Saturday May 23, 2015 as storms move through the area.

Photo: Edward A. Ornelas, San Antonio Express-News

Motorists drive through high water at the intersection of N. New...photo-8036465.110539 - |ucfirst

Kansas City Royals catcher Salvador Perez peaks out of the dugout during a sixth-inning rain delay against the St. Louis Cardinals on Saturday, May 23, 2015, at Kauffman Stadium in Kansas City, Mo. The game was called on account of the weather, giving the Royals a 3-2. less

Kansas City Royals catcher Salvador Perez peaks out of the dugout during a sixth-inning rain delay against the St. Louis Cardinals on Saturday, May 23, 2015, at Kauffman Stadium in Kansas City, Mo. The game was ... more

Photo: JOHN SLEEZER, McClatchy-Tribune News Service

Kansas City Royals catcher Salvador Perez peaks out of the dugout...photo-8054555.110539 - |ucfirst

A truck creates a wave as it forces its way through high water Saturday, May 23, 2015, in Oklahoma City. The Oklahoma Department of Transportation said at least 15 highways have been closed across the state due to high water from the recent flooding. less

A truck creates a wave as it forces its way through high water Saturday, May 23, 2015, in Oklahoma City. The Oklahoma Department of Transportation said at least 15 highways have been closed across the state due ... more

Photo: Jim Beckel, Associated Press

A truck creates a wave as it forces its way through high water...photo-8054568.110539 - |ucfirst

A firefighter looks into the window of a partially submerged car, checking to see if anyone is inside, Saturday, May 23, 2015, in Oklahoma City.

A firefighter looks into the window of a partially submerged car, checking to see if anyone is inside, Saturday, May 23, 2015, in Oklahoma City.

Photo: Jim Beckel, Associated Press

A firefighter looks into the window of a partially submerged car,...photo-8054569.110539 - |ucfirst

Highway patrolmen rescue Justin Nimmo, left, from his business, Just-In-Time, after flooding caused by rising water from Saturday night's storms trapped him in the store on Sunday, May 24, 2015 in Purcell, Okla. less

Highway patrolmen rescue Justin Nimmo, left, from his business, Just-In-Time, after flooding caused by rising water from Saturday night's storms trapped him in the store on Sunday, May 24, 2015 in Purcell, ... more

A home on the Blanco River was taken off its foundation after heavy overnight rain caused flash flooding in Wimberley, Texas, Sunday, May 24, 2015. Record rainfall was wreaking havoc across a swath of the U.S. Midwest on Sunday, causing flash floods in normally dry riverbeds, spawning tornadoes and forcing at least 2,000 people to flee. less

A home on the Blanco River was taken off its foundation after heavy overnight rain caused flash flooding in Wimberley, Texas, Sunday, May 24, 2015. Record rainfall was wreaking havoc across a swath of the U.S. ... more

Photo: Rodolfo Gonzalez, AP

A home on the Blanco River was taken off its foundation after heavy...photo-8042805.110539 - |ucfirst

Midnight, May 25, 2015

The radar shows the storm building as it crosses Kansas and Oklahoma as a scatter of storms break out across Texas.

Midnight, May 25, 2015

The radar shows the storm building as it crosses Kansas and Oklahoma as a scatter of storms break out across Texas.

Photo: WunderMap/ Weather Underground

Midnight, May 25, 2015 The radar shows the storm building as...photo-8054352.110539 - |ucfirst

Tape is stretched across a flooded Sixth Street after days of heavy rain on May 25, 2015 in Austin, Texas. Texas Gov. The Rio Blanco rose as much as 40 feet in places, caused by more than 10 inches of rain over a four-day period. The governor earlier declared a state of emergency in 24 Texas counties. less

Tape is stretched across a flooded Sixth Street after days of heavy rain on May 25, 2015 in Austin, Texas. Texas Gov. The Rio Blanco rose as much as 40 feet in places, caused by more than 10 inches of rain over ... more

Photo: Drew Anthony Smith, Getty Images

Tape is stretched across a flooded Sixth Street after days of heavy...photo-8047453.110539 - |ucfirst

With downtown Dallas in view, water from the Trinity River floods the area below the Sylvan Avenue bridge Monday, May 25, 2015, in Dallas. Several people were reported missing in flash flooding from a line of storms that stretched from the Gulf of Mexico to the Great Lakes. less

With downtown Dallas in view, water from the Trinity River floods the area below the Sylvan Avenue bridge Monday, May 25, 2015, in Dallas. Several people were reported missing in flash flooding from a line of ... more

Photo: Louis DeLuca, Associated Press

With downtown Dallas in view, water from the Trinity River floods...photo-8045573.110539 - |ucfirst

A fast moving line of thunderstorms is seen from a neighborhood in Shreveport, La., Monday, May 25, 2015. Local news stations were reporting that a confirmed tornado moving at 50 miles per hour was approaching the area from Texas. less

A fast moving line of thunderstorms is seen from a neighborhood in Shreveport, La., Monday, May 25, 2015. Local news stations were reporting that a confirmed tornado moving at 50 miles per hour was approaching ... more

Photo: Gerald Herbert, Associated Press

A fast moving line of thunderstorms is seen from a neighborhood in...photo-8055519.110539 - |ucfirst

A cross sits at water-level of the still flooding Blanco River and in view of debris from a flood days earlier, Tuesday, May 26, 2015, in Wimberley, Texas.

A cross sits at water-level of the still flooding Blanco River and in view of debris from a flood days earlier, Tuesday, May 26, 2015, in Wimberley, Texas.

Photo: Elaine Thompson, Associated Press

A cross sits at water-level of the still flooding Blanco River and...photo-8048750.110539 - |ucfirst

Motorists are stranded along I-45 along North Main in Houston after storms flooded the area, Tuesday, May 26, 2015. Overnight heavy rains caused flooding closing some portions of major highways in the Houston area. less

Motorists are stranded along I-45 along North Main in Houston after storms flooded the area, Tuesday, May 26, 2015. Overnight heavy rains caused flooding closing some portions of major highways in the Houston ... more

Photo: Cody Duty, Associated Press

Motorists are stranded along I-45 along North Main in Houston...photo-8055548.110539 - |ucfirst

A highway entrance is covered in water and debris after flood waters overran the banks of the bayou in downtown Houston, Tuesday, May 26, 2015. Floodwaters kept rising Tuesday across much of Texas as storms dumped almost another foot of rain on the Houston area, stranding hundreds of motorists and inundating the famously congested highways that serve the nation’s fourth-largest city. less

A highway entrance is covered in water and debris after flood waters overran the banks of the bayou in downtown Houston, Tuesday, May 26, 2015. Floodwaters kept rising Tuesday across much of Texas as storms ... more

Photo: Pat Sullivan, Associated Press

A highway entrance is covered in water and debris after flood...photo-8055549.110539 - |ucfirst

Roberto Salas, left, and Lewis Sternhagen check a flooded car near the Willow Waterhole Bayou in Houston, May 26, 2015. Flooding brought Houston to a near-standstill Tuesday and killed as many as five people, sending normally tame rivers and bayous surging past their banks, inundating streets and homes, and leaving roadways littered with thousands of abandoned, ruined cars. less

Roberto Salas, left, and Lewis Sternhagen check a flooded car near the Willow Waterhole Bayou in Houston, May 26, 2015. Flooding brought Houston to a near-standstill Tuesday and killed as many as five people, ... more

A tree stretches across the 700 block Huron Street, narrowly missing the home of Donna Walker, Tuesday, May 26, 2015, after heavy winds and reports of a tornado hit the Shreveport, La. area Monday evening.

A tree stretches across the 700 block Huron Street, narrowly missing the home of Donna Walker, Tuesday, May 26, 2015, after heavy winds and reports of a tornado hit the Shreveport, La. area Monday evening.